TY - JOUR T1 - Long-standing groin pain in contact sports: a prospective case–control and MRI study JF - BMJ Open Sport & Exercise Medicine JO - BMJ OPEN SP EX MED DO - 10.1136/bmjsem-2018-000507 VL - 5 IS - 1 SP - e000507 AU - Hannu Paajanen AU - Heikki Hermunen AU - Leena Ristolainen AU - Sonia Branci Y1 - 2019/03/01 UR - http://bmjopensem.bmj.com/content/5/1/e000507.abstract N2 - Objectives We aimed to prospectively evaluate the prevalence of long-standing groin pain and related MRI findings in contact sports.Methods This case–control study followed three male elite-level soccer, ice-hockey and bandy teams (102 players) for 2 years. All athletes with long-standing groin pain lasting >30 days and age-matched controls (1:3) from the same teams were examined clinically, using pelvic MRI and Hip and Groin Outcome Scores (HAGOS). Primary outcome measures were annual prevalence of groin pain and underlying MRI findings.Results The annual prevalence of chronic groin pain was 7.5%. Training characteristics and pain scores of athletes were similar in all teams. On MRI, there was no significant difference in the percentage of pubic bone marrow oedema (p = 0.80) between symptomatic players (8/15; 53%) versus controls (20/43; 47%), but adductor tendinopathy and degenerative changes at the pubic symphysis were twice more common among players with pain. Rectus muscle or iliopsoas pathology were seldom observed. Lower HAGOS subscales (p < 0.01) were recorded in players who experienced groin pain compared with the controls.Conclusion Long-standing groin pain was observed annually in 1 of 14 athletes in contact sports. Abnormalities in the pubic symphysis were common MRI findings in both symptomatic and asymptomatic players.Trial registration number NCT02560480 ER -